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【单选题】
气虚的面色多为A.
无华
B.
淡白少华
C.
苍白
D.
E.
惨白
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举一反三
【单选题】I felt sorry for the ones who had to eat the awful _______ .
A.
stiff
B.
staff
C.
stuff
【单选题】I felt I paid too much for the trip to Europe,and won't choose that travel agency again unless it's a real________. [ ]
A.
bargain
B.
treat
C.
sample
D.
exchange
【简答题】A Back in freshman year, I found myself wondering whether it should really be called “volunteering” if students only do it because they have to. I ended up volunteering at Weyrich Health Center, helpi...
【简答题】矩形截面梁最大正应力发生在横截面的___(上沿或下沿、中性轴),最大剪应力发生在上___(上沿或下沿、中性轴)。
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